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Local vlan id range is less

asked 2012-10-29 02:27:46 -0500

Hello, i am a new quantum fun. I have a question about provision local vlan of ovs plugin. Plugin ovs agent can provide 4094 local vlan for local vlan mapping on integration bridge 'br-int'. But each physical network can have a vlan range, it may be 1-4094. If compute node has two physical network. Each physical network vlan range is 1 - 4094. The node supports 4094 * 2 network. Now plugin agent of this node can only provide 4094 local vlan id for mapping physical network segmentation id(physical vlan id). If i create other network more than 4094, it will log error "No local VLAN availabel for net-id=xxxx" . Is it right?

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answered 2012-10-30 06:58:59 -0500

Thanks Robert Kukura, that solved my question.

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answered 2012-10-29 10:14:35 -0500

gongysh gravatar image

Yes, I think OVS agent Code in quantum is working this way.

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answered 2012-10-29 15:50:35 -0500

rkukura gravatar image

The local VLAN IDs only get allocated when a port on that node needs access to a network. Local VLAN IDs are not allocated for networks that are not used on that node. Therefore, the openvswitch plugin should be able to support simultaneous access to up to 4094 different virtual networks from a single node, but these can be distributed over any number of physical networks (and/or GRE tunnels).


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Asked: 2012-10-29 02:27:46 -0500

Seen: 71 times

Last updated: Oct 30 '12